<h2>interpolation works!</h2>
<hr />
<h4>1. 绑定普通文本</h4>
<p>name: {{ name }}</p>
<hr />
<h4>2. 绑定对象属性</h4>
<p>address.province: {{ address.province }}</p>
<p>address.city:{{ address.city }}</p>
<hr />
<h4>3. 使用angular内置管道</h4>
<p>address： {{ address | json }}</p>

正在开发courrency 指令
<input name='productPrice' [(ngModel)]='price' appCurrency />
